349207563 has 6 divisors (see below), whose sum is σ = 465653244. Its totient is φ = 232783464.

The previous prime is 349207561. The next prime is 349207577. The reversal of 349207563 is 365702943.

It is not a de Polignac number, because 349207563 - 2¹ = 349207561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (349207561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26973 + ... + 37761.

It is an arithmetic number, because the mean of its divisors is an integer number (77608874).

Almost surely, 2^349207563 is an apocalyptic number.

349207563 is a deficient number, since it is larger than the sum of its proper divisors (116445681).

349207563 is an frugal number, since it uses more digits than its factorization.

349207563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21581 (or 10792 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 349207563 is about 18687.0961628606. The cubic root of 349207563 is about 704.1976103267.

The spelling of 349207563 in words is "three hundred forty-nine million, two hundred seven thousand, five hundred sixty-three".